Merge pull request #412 from g4jc/hsts_priming_removal_backport

Remove support and tests for HSTS priming from the tree. Fixes #384

16 files changed, 0 insertions, 715 deletions

diff --git a/dom/security/test/hsts/browser.ini b/dom/security/test/hsts/browser.ini
deleted file mode 100644
index ae75031df..000000000
--- a/dom/security/test/hsts/browser.ini
+++ /dev/null
@@ -1,19 +0,0 @@
-[DEFAULT]
-skip-if = debug # bug 1311599, bug 1311239, etc
-support-files =
-  head.js
-  file_priming-top.html
-  file_testserver.sjs
-  file_1x1.png
-  file_priming.js
-  file_stylesheet.css
-
-[browser_hsts-priming_allow_active.js]
-[browser_hsts-priming_block_active.js]
-[browser_hsts-priming_hsts_after_mixed.js]
-[browser_hsts-priming_allow_display.js]
-[browser_hsts-priming_block_display.js]
-[browser_hsts-priming_block_active_css.js]
-[browser_hsts-priming_block_active_with_redir_same.js]
-[browser_hsts-priming_no-duplicates.js]
-[browser_hsts-priming_cache-timeout.js]
diff --git a/dom/security/test/hsts/browser_hsts-priming_allow_active.js b/dom/security/test/hsts/browser_hsts-priming_allow_active.js
deleted file mode 100644
index a932b31b3..000000000
--- a/dom/security/test/hsts/browser_hsts-priming_allow_active.js
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Description of the test:
- *   Check that HSTS priming occurs correctly with mixed content when active
- *   content is allowed.
- */
-'use strict';
-
-//jscs:disable
-add_task(function*() {
-  //jscs:enable
-  Services.obs.addObserver(Observer, "console-api-log-event", false);
-  Services.obs.addObserver(Observer, "http-on-examine-response", false);
-  registerCleanupFunction(do_cleanup);
-
-  let which = "allow_active";
-
-  SetupPrefTestEnvironment(which);
-
-  for (let server of Object.keys(test_servers)) {
-    yield execute_test(server, test_settings[which].mimetype);
-  }
-
-  SpecialPowers.popPrefEnv();
-});
diff --git a/dom/security/test/hsts/browser_hsts-priming_allow_display.js b/dom/security/test/hsts/browser_hsts-priming_allow_display.js
deleted file mode 100644
index 06546ca65..000000000
--- a/dom/security/test/hsts/browser_hsts-priming_allow_display.js
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Description of the test:
- *   Check that HSTS priming occurs correctly with mixed content when display
- *   content is allowed.
- */
-'use strict';
-
-//jscs:disable
-add_task(function*() {
-  //jscs:enable
-  Services.obs.addObserver(Observer, "console-api-log-event", false);
-  Services.obs.addObserver(Observer, "http-on-examine-response", false);
-  registerCleanupFunction(do_cleanup);
-
-  let which = "allow_display";
-
-  SetupPrefTestEnvironment(which);
-
-  for (let server of Object.keys(test_servers)) {
-    yield execute_test(server, test_settings[which].mimetype);
-  }
-
-  SpecialPowers.popPrefEnv();
-});
diff --git a/dom/security/test/hsts/browser_hsts-priming_block_active.js b/dom/security/test/hsts/browser_hsts-priming_block_active.js
deleted file mode 100644
index a5478b185..000000000
--- a/dom/security/test/hsts/browser_hsts-priming_block_active.js
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Description of the test:
- *   Check that HSTS priming occurs correctly with mixed content when active
- *   content is blocked.
- */
-'use strict';
-
-//jscs:disable
-add_task(function*() {
-  //jscs:enable
-  Services.obs.addObserver(Observer, "console-api-log-event", false);
-  Services.obs.addObserver(Observer, "http-on-examine-response", false);
-  registerCleanupFunction(do_cleanup);
-
-  let which = "block_active";
-
-  SetupPrefTestEnvironment(which);
-
-  for (let server of Object.keys(test_servers)) {
-    yield execute_test(server, test_settings[which].mimetype);
-  }
-
-  SpecialPowers.popPrefEnv();
-});
diff --git a/dom/security/test/hsts/browser_hsts-priming_block_active_css.js b/dom/security/test/hsts/browser_hsts-priming_block_active_css.js
deleted file mode 100644
index 340d11483..000000000
--- a/dom/security/test/hsts/browser_hsts-priming_block_active_css.js
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Description of the test:
- *   Check that HSTS priming occurs correctly with mixed content when active
- *   content is blocked for css.
- */
-'use strict';
-
-//jscs:disable
-add_task(function*() {
-  //jscs:enable
-  Services.obs.addObserver(Observer, "console-api-log-event", false);
-  Services.obs.addObserver(Observer, "http-on-examine-response", false);
-  registerCleanupFunction(do_cleanup);
-
-  let which = "block_active_css";
-
-  SetupPrefTestEnvironment(which);
-
-  for (let server of Object.keys(test_servers)) {
-    yield execute_test(server, test_settings[which].mimetype);
-  }
-
-  SpecialPowers.popPrefEnv();
-});
diff --git a/dom/security/test/hsts/browser_hsts-priming_block_active_with_redir_same.js b/dom/security/test/hsts/browser_hsts-priming_block_active_with_redir_same.js
deleted file mode 100644
index 130a3d5ec..000000000
--- a/dom/security/test/hsts/browser_hsts-priming_block_active_with_redir_same.js
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Description of the test:
- *   Check that HSTS priming occurs correctly with mixed content when active
- *   content is blocked and redirect to the same host should still upgrade.
- */
-'use strict';
-
-//jscs:disable
-add_task(function*() {
-  //jscs:enable
-  Services.obs.addObserver(Observer, "console-api-log-event", false);
-  Services.obs.addObserver(Observer, "http-on-examine-response", false);
-  registerCleanupFunction(do_cleanup);
-
-  let which = "block_active_with_redir_same";
-
-  SetupPrefTestEnvironment(which);
-
-  for (let server of Object.keys(test_servers)) {
-    yield execute_test(server, test_settings[which].mimetype);
-  }
-
-  SpecialPowers.popPrefEnv();
-});
diff --git a/dom/security/test/hsts/browser_hsts-priming_block_display.js b/dom/security/test/hsts/browser_hsts-priming_block_display.js
deleted file mode 100644
index 4eca62718..000000000
--- a/dom/security/test/hsts/browser_hsts-priming_block_display.js
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Description of the test:
- *   Check that HSTS priming occurs correctly with mixed content when display
- *   content is blocked.
- */
-'use strict';
-
-//jscs:disable
-add_task(function*() {
-  //jscs:enable
-  Services.obs.addObserver(Observer, "console-api-log-event", false);
-  Services.obs.addObserver(Observer, "http-on-examine-response", false);
-  registerCleanupFunction(do_cleanup);
-
-  let which = "block_display";
-
-  SetupPrefTestEnvironment(which);
-
-  for (let server of Object.keys(test_servers)) {
-    yield execute_test(server, test_settings[which].mimetype);
-  }
-
-  SpecialPowers.popPrefEnv();
-});
diff --git a/dom/security/test/hsts/browser_hsts-priming_cache-timeout.js b/dom/security/test/hsts/browser_hsts-priming_cache-timeout.js
deleted file mode 100644
index 5416a71d2..000000000
--- a/dom/security/test/hsts/browser_hsts-priming_cache-timeout.js
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Description of the test:
- * Test that the network.hsts_priming.cache_timeout preferene causes the cache
- * to timeout
- */
-'use strict';
-
-//jscs:disable
-add_task(function*() {
-  //jscs:enable
-  Observer.add_observers(Services);
-  registerCleanupFunction(do_cleanup);
-
-  let which = "block_display";
-
-  SetupPrefTestEnvironment(which, [["security.mixed_content.hsts_priming_cache_timeout", 1]]);
-
-  yield execute_test("no-ssl", test_settings[which].mimetype);
-
-  let pre_promise = performance.now();
-
-  while ((performance.now() - pre_promise) < 2000) {
-    yield new Promise(function (resolve) {
-      setTimeout(resolve, 2000);
-    });
-  }
-
-  // clear the fact that we saw a priming request
-  test_settings[which].priming = {};
-
-  yield execute_test("no-ssl", test_settings[which].mimetype);
-  is(test_settings[which].priming["no-ssl"], true,
-    "Correctly send a priming request after expiration.");
-
-  SpecialPowers.popPrefEnv();
-});
diff --git a/dom/security/test/hsts/browser_hsts-priming_hsts_after_mixed.js b/dom/security/test/hsts/browser_hsts-priming_hsts_after_mixed.js
deleted file mode 100644
index 89ea6fbeb..000000000
--- a/dom/security/test/hsts/browser_hsts-priming_hsts_after_mixed.js
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Description of the test:
- *   Check that HSTS priming occurs correctly with mixed content when the
- *   mixed-content blocks before HSTS.
- */
-'use strict';
-
-//jscs:disable
-add_task(function*() {
-  //jscs:enable
-  Services.obs.addObserver(Observer, "console-api-log-event", false);
-  Services.obs.addObserver(Observer, "http-on-examine-response", false);
-  registerCleanupFunction(do_cleanup);
-
-  let which = "hsts_after_mixed";
-
-  SetupPrefTestEnvironment(which);
-
-  for (let server of Object.keys(test_servers)) {
-    yield execute_test(server, test_settings[which].mimetype);
-  }
-
-  SpecialPowers.popPrefEnv();
-});
diff --git a/dom/security/test/hsts/browser_hsts-priming_no-duplicates.js b/dom/security/test/hsts/browser_hsts-priming_no-duplicates.js
deleted file mode 100644
index 3846fe4f0..000000000
--- a/dom/security/test/hsts/browser_hsts-priming_no-duplicates.js
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Description of the test:
- *   Only one request should be sent per host, even if we run the test more
- *   than once.
- */
-'use strict';
-
-//jscs:disable
-add_task(function*() {
-  //jscs:enable
-  Observer.add_observers(Services);
-  registerCleanupFunction(do_cleanup);
-
-  let which = "block_display";
-
-  SetupPrefTestEnvironment(which);
-
-  for (let server of Object.keys(test_servers)) {
-    yield execute_test(server, test_settings[which].mimetype);
-  }
-
-  test_settings[which].priming = {};
-
-  // run the tests twice to validate the cache is being used
-  for (let server of Object.keys(test_servers)) {
-    yield execute_test(server, test_settings[which].mimetype);
-  }
-
-  SpecialPowers.popPrefEnv();
-});
diff --git a/dom/security/test/hsts/file_1x1.png b/dom/security/test/hsts/file_1x1.png
deleted file mode 100644
index 1ba31ba1a..000000000
--- a/dom/security/test/hsts/file_1x1.png
+++ /dev/null
diff --git a/dom/security/test/hsts/file_priming-top.html b/dom/security/test/hsts/file_priming-top.html
deleted file mode 100644
index b1d1bfa40..000000000
--- a/dom/security/test/hsts/file_priming-top.html
+++ /dev/null
@@ -1,84 +0,0 @@
-<!DOCTYPE HTML>
-<html>
-<head>
-  <title>Bug 1246540</title>
-  <meta http-equiv='content-type' content="text/html;charset=utf-8" />
-</head>
-<body>
-  <p id="display"></p>
-  <div id="content" style="visibility: hidden">
-  </div>
-
-<script type="text/javascript">
-/*
- * Description of the test:
- * Attempt to load an insecure resource. If the resource responds to HSTS
- * priming with an STS header, the load should continue securely.
- * If it does not, the load should continue be blocked or continue insecurely.
- */
-
-function parse_query_string() {
-  var q = {};
-  document.location.search.substr(1).
-    split('&').forEach(function (item, idx, ar) {
-      let [k, v] = item.split('=');
-      q[k] = unescape(v);
-    });
-  return q;
-}
-
-var args = parse_query_string();
-
-var subresources = {
-  css: { mimetype: 'text/css', file: 'file_stylesheet.css' },
-  img: { mimetype: 'image/png', file: 'file_1x1.png' },
-  script: { mimetype: 'text/javascript', file: 'file_priming.js' },
-};
-
-function handler(ev) {
-  console.log("HSTS_PRIMING: Blocked "+args.id);
-}
-
-function loadCss(src) {
-  let head = document.getElementsByTagName("head")[0];
-  let link = document.createElement("link");
-  link.setAttribute("rel", "stylesheet");
-  link.setAttribute("type", subresources[args.type].mimetype);
-  link.setAttribute("href", src);
-  head.appendChild(link);
-}
-
-function loadResource(src) {
-  let content = document.getElementById("content");
-  let testElem = document.createElement(args.type);
-  testElem.setAttribute("id", args.id);
-  testElem.setAttribute("charset", "UTF-8");
-  testElem.onerror = handler;
-  content.appendChild(testElem);
-  testElem.src = src;
-}
-
-function loadTest() {
-  let subresource = subresources[args.type];
-
-  let src = "http://"
-    + args.host
-    + "/browser/dom/security/test/hsts/file_testserver.sjs"
-    + "?file=" +escape("browser/dom/security/test/hsts/" + subresource.file)
-    + "&primer=" + escape(args.id)
-    + "&mimetype=" + escape(subresource.mimetype)
-    ;
-  if (args.type == 'css') {
-    loadCss(src);
-    return;
-  }
-
-  loadResource(src);
-}
-
-// start running the tests
-loadTest();
-
-</script>
-</body>
-</html>
diff --git a/dom/security/test/hsts/file_priming.js b/dom/security/test/hsts/file_priming.js
deleted file mode 100644
index 023022da6..000000000
--- a/dom/security/test/hsts/file_priming.js
+++ /dev/null
@@ -1,4 +0,0 @@
-function completed() {
-  return;
-}
-completed();
diff --git a/dom/security/test/hsts/file_stylesheet.css b/dom/security/test/hsts/file_stylesheet.css
deleted file mode 100644
index e69de29bb..000000000
--- a/dom/security/test/hsts/file_stylesheet.css
+++ /dev/null
diff --git a/dom/security/test/hsts/file_testserver.sjs b/dom/security/test/hsts/file_testserver.sjs
deleted file mode 100644
index d5cd6b17a..000000000
--- a/dom/security/test/hsts/file_testserver.sjs
+++ /dev/null
@@ -1,66 +0,0 @@
-// SJS file for HSTS mochitests
-
-Components.utils.import("resource://gre/modules/NetUtil.jsm");
-Components.utils.importGlobalProperties(["URLSearchParams"]);
-
-function loadFromFile(path) {
-  // Load the HTML to return in the response from file.
-  // Since it's relative to the cwd of the test runner, we start there and
-  // append to get to the actual path of the file.
-  var testFile =
-    Components.classes["@mozilla.org/file/directory_service;1"].
-    getService(Components.interfaces.nsIProperties).
-    get("CurWorkD", Components.interfaces.nsILocalFile);
-  var dirs = path.split("/");
-  for (var i = 0; i < dirs.length; i++) {
-    testFile.append(dirs[i]);
-  }
-  var testFileStream =
-    Components.classes["@mozilla.org/network/file-input-stream;1"].
-    createInstance(Components.interfaces.nsIFileInputStream);
-  testFileStream.init(testFile, -1, 0, 0);
-  var test = NetUtil.readInputStreamToString(testFileStream, testFileStream.available());
-  return test;
-}
-
-function handleRequest(request, response)
-{
-  const query = new URLSearchParams(request.queryString);
-
-  redir = query.get('redir');
-  if (redir == 'same') {
-    query.delete("redir");
-    response.setStatus(302);
-    let newURI = request.uri;
-    newURI.queryString = query.serialize();
-    response.setHeader("Location", newURI.spec)
-  }
-
-  // avoid confusing cache behaviors
-  response.setHeader("Cache-Control", "no-cache", false);
-
-  // if we have a priming header, check for required behavior
-  // and set header appropriately
-  if (request.hasHeader('Upgrade-Insecure-Requests')) {
-    var expected = query.get('primer');
-    if (expected == 'prime-hsts') {
-      // set it for 5 minutes
-      response.setHeader("Strict-Transport-Security", "max-age="+(60*5), false);
-    } else if (expected == 'reject-upgrade') {
-      response.setHeader("Strict-Transport-Security", "max-age=0", false);
-    }
-    response.write('');
-    return;
-  }
-
-  var file = query.get('file');
-  if (file) {
-    var mimetype = unescape(query.get('mimetype'));
-    response.setHeader("Content-Type", mimetype, false);
-    response.write(loadFromFile(unescape(file)));
-    return;
-  }
-
-  response.setHeader("Content-Type", "application/json", false);
-  response.write('{}');
-}
diff --git a/dom/security/test/hsts/head.js b/dom/security/test/hsts/head.js
deleted file mode 100644
index 362b36444..000000000
--- a/dom/security/test/hsts/head.js
+++ /dev/null
@@ -1,308 +0,0 @@
-/*
- * Description of the tests:
- *   Check that HSTS priming occurs correctly with mixed content
- *
- *   This test uses three hostnames, each of which treats an HSTS priming
- *   request differently.
- *   * no-ssl never returns an ssl response
- *   * reject-upgrade returns an ssl response, but with no STS header
- *   * prime-hsts returns an ssl response with the appropriate STS header
- *
- *   For each server, test that it response appropriately when the we allow
- *   or block active or display content, as well as when we send an hsts priming
- *   request, but do not change the order of mixed-content and HSTS.
- *
- *   Test use http-on-examine-response, so must be run in browser context.
- */
-'use strict';
-
-var TOP_URI = "https://example.com/browser/dom/security/test/hsts/file_priming-top.html";
-
-var test_servers = {
-  // a test server that does not support TLS
-  'no-ssl': {
-    host: 'example.co.jp',
-    response: false,
-    id: 'no-ssl',
-  },
-  // a test server which does not support STS upgrade
-  'reject-upgrade': {
-    host: 'example.org',
-    response: true,
-    id: 'reject-upgrade',
-  },
-  // a test server when sends an STS header when priming
-  'prime-hsts': {
-    host: 'test1.example.com',
-    response: true,
-    id: 'prime-hsts'
-  },
-};
-
-var test_settings = {
-  // mixed active content is allowed, priming will upgrade
-  allow_active: {
-    block_active: false,
-    block_display: false,
-    use_hsts: true,
-    send_hsts_priming: true,
-    type: 'script',
-    result: {
-      'no-ssl': 'insecure',
-      'reject-upgrade': 'insecure',
-      'prime-hsts': 'secure',
-    },
-  },
-  // mixed active content is blocked, priming will upgrade
-  block_active: {
-    block_active: true,
-    block_display: false,
-    use_hsts: true,
-    send_hsts_priming: true,
-    type: 'script',
-    result: {
-      'no-ssl': 'blocked',
-      'reject-upgrade': 'blocked',
-      'prime-hsts': 'secure',
-    },
-  },
-  // keep the original order of mixed-content and HSTS, but send
-  // priming requests
-  hsts_after_mixed: {
-    block_active: true,
-    block_display: false,
-    use_hsts: false,
-    send_hsts_priming: true,
-    type: 'script',
-    result: {
-      'no-ssl': 'blocked',
-      'reject-upgrade': 'blocked',
-      'prime-hsts': 'blocked',
-    },
-  },
-  // mixed display content is allowed, priming will upgrade
-  allow_display: {
-    block_active: true,
-    block_display: false,
-    use_hsts: true,
-    send_hsts_priming: true,
-    type: 'img',
-    result: {
-      'no-ssl': 'insecure',
-      'reject-upgrade': 'insecure',
-      'prime-hsts': 'secure',
-    },
-  },
-  // mixed display content is blocked, priming will upgrade
-  block_display: {
-    block_active: true,
-    block_display: true,
-    use_hsts: true,
-    send_hsts_priming: true,
-    type: 'img',
-    result: {
-      'no-ssl': 'blocked',
-      'reject-upgrade': 'blocked',
-      'prime-hsts': 'secure',
-    },
-  },
-  // mixed active content is blocked, priming will upgrade (css)
-  block_active_css: {
-    block_active: true,
-    block_display: false,
-    use_hsts: true,
-    send_hsts_priming: true,
-    type: 'css',
-    result: {
-      'no-ssl': 'blocked',
-      'reject-upgrade': 'blocked',
-      'prime-hsts': 'secure',
-    },
-  },
-  // mixed active content is blocked, priming will upgrade
-  // redirect to the same host
-  block_active_with_redir_same: {
-    block_active: true,
-    block_display: false,
-    use_hsts: true,
-    send_hsts_priming: true,
-    type: 'script',
-    redir: 'same',
-    result: {
-      'no-ssl': 'blocked',
-      'reject-upgrade': 'blocked',
-      'prime-hsts': 'secure',
-    },
-  },
-}
-// track which test we are on
-var which_test = "";
-
-const Observer = {
-  observe: function (subject, topic, data) {
-    switch (topic) {
-      case 'console-api-log-event':
-        return Observer.console_api_log_event(subject, topic, data);
-      case 'http-on-examine-response':
-        return Observer.http_on_examine_response(subject, topic, data);
-      case 'http-on-modify-request':
-        return Observer.http_on_modify_request(subject, topic, data);
-    }
-    throw "Can't handle topic "+topic;
-  },
-  add_observers: function (services) {
-    services.obs.addObserver(Observer, "console-api-log-event", false);
-    services.obs.addObserver(Observer, "http-on-examine-response", false);
-    services.obs.addObserver(Observer, "http-on-modify-request", false);
-  },
-  // When a load is blocked which results in an error event within a page, the
-  // test logs to the console.
-  console_api_log_event: function (subject, topic, data) {
-    var message = subject.wrappedJSObject.arguments[0];
-    // when we are blocked, this will match the message we sent to the console,
-    // ignore everything else.
-    var re = RegExp(/^HSTS_PRIMING: Blocked ([-\w]+).*$/);
-    if (!re.test(message)) {
-      return;
-    }
-
-    let id = message.replace(re, '$1');
-    let curTest =test_servers[id];
-
-    if (!curTest) {
-      ok(false, "HSTS priming got a console message blocked, "+
-          "but doesn't match expectations "+id+" (msg="+message);
-      return;
-    }
-
-    is("blocked", test_settings[which_test].result[curTest.id], "HSTS priming "+
-        which_test+":"+curTest.id+" expected "+
-        test_settings[which_test].result[curTest.id]+", got blocked");
-    test_settings[which_test].finished[curTest.id] = "blocked";
-  },
-  get_current_test: function(uri) {
-    for (let item in test_servers) {
-      let re = RegExp('https?://'+test_servers[item].host);
-      if (re.test(uri)) {
-        return test_servers[item];
-      }
-    }
-    return null;
-  },
-  http_on_modify_request: function (subject, topic, data) {
-    let channel = subject.QueryInterface(Ci.nsIHttpChannel);
-    if (channel.requestMethod != 'HEAD') {
-      return;
-    }
-
-    let curTest = this.get_current_test(channel.URI.asciiSpec);
-
-    if (!curTest) {
-      return;
-    }
-
-    ok(!(curTest.id in test_settings[which_test].priming), "Already saw a priming request for " + curTest.id);
-    test_settings[which_test].priming[curTest.id] = true;
-  },
-  // When we see a response come back, peek at the response and test it is secure
-  // or insecure as needed. Addtionally, watch the response for priming requests.
-  http_on_examine_response: function (subject, topic, data) {
-    let channel = subject.QueryInterface(Ci.nsIHttpChannel);
-    let curTest = this.get_current_test(channel.URI.asciiSpec);
-
-    if (!curTest) {
-      return;
-    }
-
-    let result = (channel.URI.asciiSpec.startsWith('https:')) ? "secure" : "insecure";
-
-    // This is a priming request, go ahead and validate we were supposed to see
-    // a response from the server
-    if (channel.requestMethod == 'HEAD') {
-      is(true, curTest.response, "HSTS priming response found " + curTest.id);
-      return;
-    }
-
-    // This is the response to our query, make sure it matches
-    is(result, test_settings[which_test].result[curTest.id],
-        "HSTS priming result " + which_test + ":" + curTest.id);
-    test_settings[which_test].finished[curTest.id] = result;
-  },
-};
-
-// opens `uri' in a new tab and focuses it.
-// returns the newly opened tab
-function openTab(uri) {
-  let tab = gBrowser.addTab(uri);
-
-  // select tab and make sure its browser is focused
-  gBrowser.selectedTab = tab;
-  tab.ownerDocument.defaultView.focus();
-
-  return tab;
-}
-
-function clear_sts_data() {
-  for (let test in test_servers) {
-    SpecialPowers.cleanUpSTSData('http://'+test_servers[test].host);
-  }
-}
-
-function do_cleanup() {
-  clear_sts_data();
-
-  Services.obs.removeObserver(Observer, "console-api-log-event");
-  Services.obs.removeObserver(Observer, "http-on-examine-response");
-}
-
-function SetupPrefTestEnvironment(which, additional_prefs) {
-  which_test = which;
-  clear_sts_data();
-
-  var settings = test_settings[which];
-  // priming counts how many priming requests we saw
-  settings.priming = {};
-  // priming counts how many tests were finished
-  settings.finished= {};
-
-  var prefs = [["security.mixed_content.block_active_content",
-                settings.block_active],
-               ["security.mixed_content.block_display_content",
-                settings.block_display],
-               ["security.mixed_content.use_hsts",
-                settings.use_hsts],
-               ["security.mixed_content.send_hsts_priming",
-                settings.send_hsts_priming]];
-
-  if (additional_prefs) {
-    for (let idx in additional_prefs) {
-      prefs.push(additional_prefs[idx]);
-    }
-  }
-
-  console.log("prefs=%s", prefs);
-
-  SpecialPowers.pushPrefEnv({'set': prefs});
-}
-
-// make the top-level test uri
-function build_test_uri(base_uri, host, test_id, type) {
-  return base_uri +
-          "?host=" + escape(host) +
-          "&id=" + escape(test_id) +
-          "&type=" + escape(type);
-}
-
-// open a new tab, load the test, and wait for it to finish
-function execute_test(test, mimetype) {
-  var src = build_test_uri(TOP_URI, test_servers[test].host,
-      test, test_settings[which_test].type);
-
-  let tab = openTab(src);
-  test_servers[test]['tab'] = tab;
-
-  let browser = gBrowser.getBrowserForTab(tab);
-  yield BrowserTestUtils.browserLoaded(browser);
-
-  yield BrowserTestUtils.removeTab(tab);
-}